| Charles Butler - 1814
...angle. It is usual to divide the whole circumference into 360 equal parts called degrees, to subdivide **each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds,** &c. wherefore, if an angle at the centre be subtended by an arc which consists of suppose 30 degrees,... | |
| Euclides - 1816 - 528 sider
...called the measure of the angle ABC. II. The circumference of a circle is supposed to be divided fnto **360 equal parts called degrees, and each degree into...and each minute into 60 equal parts called seconds,** &c. And as many degrees, minutes, seconds, &c. as are contained in any arc h, of so many degrees, minutes,... | |
| Nathaniel Dwight - 1816 - 213 sider
...A. The circumference of every circle is supposed to be divided into 360 equal parts called degrees ; **each degree into 60 equal parts called minutes ; and each minute into 60** seconds. Q. What is a meridian ? A. It is a great circle cutting the equator at right angle's', and... | |
| John Gummere - 1817 - 206 sider
...determined. 2. The periphery of every circle is supposed to be divided into 360 equal parts, called degrees ; **each degree into 60 equal parts, called minutes ;...and each minute into 60 equal parts, called seconds,** See. I 3. The measure of- an angle is the arc of a circle, contained between the two lines that form... | |
| Thomas Keith, William Hawney - 1817
...The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; **each degree into 60 equal parts, called minutes ;...and each minute into 60 equal parts, called seconds.** The angles are measured by the number of degrees cut off from the circle, by the lines which form the... | |
| Miles Bland - 1819 - 377 sider
...unanimously agreed to divide the circumference of the circle into 36o equal parts called Degrees ; **each degree into 60 equal parts called Minutes; and each minute into 60 equal parts called Seconds,** &c. This method appeared to the Greek Geometers to afford some facilities for calculations, in consequence... | |
| Miles Bland - 1819 - 377 sider
...unanimously agreed to divide the circumference of the circle into 36o equal parts called Degrees ; **each degree into 60 equal parts called Minutes ; and each minute into 60 equal parts called Seconds,** &c. This method appeared to the Greek Geometers to afford some facilities for calculations, in consequence... | |
| William Hawney - 1820 - 312 sider
...The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; **each degree into 60 equal parts, called minutes :...and each minute into 60 equal parts, called seconds.** Angles are measured by the number of degrees cut oft'from the circle, by the lines which form the angles.... | |
| Thomas Simpson - 1821 - 408 sider
...into some assigned number of equal parts. 2. The periphery of every circle is supposed to be divided **into 360 equal parts, called degrees ; and each degree...60 equal parts, called seconds, or second minutes,** <Jc. Any part of the periphery is called an arch, and is measured by the number of degrees and minutes,... | |
| Anthony Nesbit, W. Little - 1822 - 533 sider
...The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; **each degree into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds,** &c. 48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. 49. An ellipse... | |
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